CVE-2009-3200 json
The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in…
published 2009-09-21 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3183
- cvss
- 5.9
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in the ENCK variable in flash memory, which allows local users to bypass the passphrase requirement and decrypt the hard drive by reading this variable, deobfuscating the key, and running a cryptsetup luksOpen command.
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- baseline-security.de http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.9 | AV:L/AC:M/Au:N/C:C/I:P/A:P |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
References
-
baseline-security.de
/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt
exploit
-
secunia.com
/advisories/36793
third-party-advisory
- forum.qnap.com /viewtopic.php?f=12&t=12104&start=10#p63341
- forum.qnap.com /viewtopic.php?f=11&t=11214&start=20#p63346
-
exchange.xforce.ibmcloud.com
/vulnerabilities/53391
vdb-entry
-
securityfocus.com
/archive/1/506607/100/0/threaded
mailing-list
-
securityfocus.com
/bid/36467
vdb-entry
-
securitytracker.com
/id?1022916
vdb-entry
Sources
- CVE List CVE-2009-3200
- NVD CVE-2009-3200
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.